Multielement geochemistry of offshore sediments in the southeastern Yellow Sea and implications for sediment origin and dispersal SCIE SCOPUS

Cited 25 time in WEB OF SCIENCE Cited 26 time in Scopus
Title
Multielement geochemistry of offshore sediments in the southeastern Yellow Sea and implications for sediment origin and dispersal
Author(s)
Lim, Dhongil; Choi, Jin Yong; Shin, Hyeon Ho; Rho, Kyung Chan; Jung, Hoi Soo
KIOST Author(s)
Lim, Dhongil(임동일)Shin, Hyeon Ho(신현호)Jung, Hoi Soo(정회수)
Publication Year
2013-06-17
Abstract
In total, 116 surface sediments were collected from an offshore area of the southeastern Yellow Sea including a large mud belt (southeastern Yellow Sea mud: SEYSM) and analyzed for grain size and geochemical composition (organic carbon and 42 elements). Principal component analysis revealed that elemental compositions of the offshore sediments were mostly controlled by common aluminosilicate clay minerals and quartz (most elements), heavy minerals [Hf, Zr, U, Th, rare earth elements (REEs)], biogenic calcium carbonates (Ca, Sr), feldspar and mica (K, Ba, Pb), and Mn-oxides (Mn-oxide coatings on sand grains). Notably, total REE concentrations may be associated with heavy minerals (possibly zircon and monazite), especially in silty grains, even though heavy REE (HREEs) concentrations are more strongly controlled by clay minerals in muddy sediments. The diagnostic discrimination plots of geochemical compositions [e.g., Fe vs. Al, Mg vs. Al, light REE vs. HREE, and (La/Lu)ucc vs. (La/Y)ucc] suggested that the offshore sediments (especially in SEYSM deposits) were composed of a mixture of Korean river-derived silts and Chinese river-derived clays. This demonstrated that Chinese river sediments (especially clay particles) largely contributed to the formation of the giant mud belt in the Korean coastal area. Furthermore, the observed geochemical end-members provide new markers of sediment provenance, which can be used to track dispersal patterns and sediment limits from Chinese and/or Korean rivers. (C) 2013 Elsevier Ltd and INQUA. All rights reserved.
ISSN
1040-6182
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3163
DOI
10.1016/j.quaint.2013.01.004
Bibliographic Citation
QUATERNARY INTERNATIONAL, v.298, pp.196 - 206, 2013
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Subject
EARTH-ELEMENT COMPOSITIONS; SURFACE SEDIMENTS; GRAIN-SIZE; SHELF SEDIMENTS; MUD DEPOSITS; KOREA; PROVENANCE; SOUTHERN; METALS; CHINA
Type
Article
Language
English
Document Type
Article
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Related Researcher
Research Interests

Marine bioresource,Marine phytoplankton diversity / ecology,Marine micropaleontology,해양생물자원,해양식물플랑크톤 다양성/생태학,해양미고생물학

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